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Start Up Procedure

Always check battery condition before towing

A. Check engine compartment for fuel vapor, water leaks, and engine oil level. A basic safety check, anything out of the ordinary.

B. Run bilge blower before starting engine

C. Use # 1 or # 2 battery by itself. Keep one battery in reserve.

D. Use both batteries when engine cranks slow in cold weather, start engine, then switch back to one battery.

E. Before launching, start and warm engine at 1200 to 1400 RPMS.

F. While waiting for engine to warm up check accessories and steering response, also check shifting response. Monitor gauges.

G. After running engine at high rpms or after running extended amounts of time, idle engine for a few minutes before shutting off. To dissipate heat and to keep from dieseling.

H. Change oil after first 10 hours.

I. Grease thrust (front) bearing and tail bearing. At same intervals as oil change, also grease u-joints at the same time. Change oil every 15-20 hours depending on usage. Clean flame arrestor as needed.

J. Check antifreeze before winter season.

K. Always drain water cooled exhaust manifolds during cold weather to avoid breakage.

L. Excessive fuel consumption can be caused by worn spark plugs. Check condition and replace.

M. Change fuel filter at least yearly, in wet climates change every six months.

N. Keeping fuel tank full helps prevent internal moisture build up.

O. Keep carburetor linkage well cleaned and lubricated

P. Always check to see if all steering and shifting bolts and nuts are tight before launching boat.

Q. Check battery levels during regular oil change intervals

R. Keep water out of bilge as this can affect starter operation.

S. If engine electrical system is heavily loaded, it is possible for main breaker to shut down. reset by pushing in. heavy draw (amps) items, lights stereo equipment ect., are not recommended for extended usage, this can weaken charging system and cause extended battery charging requirements.

T. Make sure battery switch is in off position when boat is not in use or when boat is in storage.

U. If engine diesels a hydrostatic cylinder lock may take place. Do not crank engine in this condition. Damage may occur!! remove spark plugs, crank engine over until cylinders are empty. Clean and dry spark plugs, reinstall, and restart.

V. Carburetor is a holley 4 barrel marine, parts are on carburetor.

X. Parts # is on distributor. (if distributor is electronic, no points)

When ordering parts refer to engine as;
1. Cubic inches
2. Model and serial number
3. Year of manufacturing

Y. Check lugnuts before you tow. Lubricate trailer bearings when you change oil or as needed.

Z. Check brake fluid level often.

1. Check tire pressure before you tow.

2. Check all trailer lighting before you tow.

3. Check condition of winch and winch strap often.

4. Keep trailers electrical plug clean and in good condition.




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Some photos show models with dealer added options. Personal Floatation Devices (PFDs) not always visible in photos.
Models, specifications, features, and options are subject to change without notice as Duckworth seeks product improvements.
Please check with your local full-service Duckworth dealer for the latest information about all of the features and options available for your Duckworth.

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